|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Energetic-protein supplementation in the last 60 days of gestation improves performance of beef cows grazing tropical pastures显示文摘Background: Nutrition is one of the most important factors that affect animal performance, and it therefore also impacts on financial results in beef systems. In this way, finding the best strategy for feeding supplements is of paramount importance. Aiming to evaluate the effect of supplement feeding strategies for beef cows in the last third of gestation, two experiments were conducted. In Experiment 1, 35 pregnant Nellore cows were assigned to a completely randomized design with four treatments: control, which received no supplement; supplementation for the last 30 d of gestation(30-d; 3.0 kg/d); supplementation for the last 60 d of gestation(60-d; 1.5 kg/d); or supplementation for the last 90 d of gestation(90-d; 1.0 kg/d). All supplemented treatments received the same total amount of supplement throughout the experiment: 90 kg(20% of crude protein). A second experiment(Experiment 2) was delineated to evaluate the effects of the amounts offered in Experiment 1 on intake and metabolism. Four multiparous pregnant Nellore cows were assigned to a 4 × 4 Latin square design, with periods of15 d each.Results: There was a linear effect of the number of days of supplementation on calving body weight(BW; P < 0.05)and a quadratic effect on BW change from parturition to d 31 post-calving(P < 0.05), with cows on the 60-d strategy losing less BW post-calving. No difference was found in offspring birth BW(P > 0.10). A significant linear effect on interval from parturition to conception(P < 0.05) was observed, with the highest calving to conception interval being observed in the 90-d strategy. The level of supplementation did not affect forage intake or neutral detergent fiber digestibility(P > 0.10). Nitrogen excreted through urine tended to increase linearly with the level of supplementation(P < 0.10).Conclusion: Providing 1.5 kg of supplement during the last 60 d of gestation improves cow performance after calving, reducing the magnitude of BW lost, and reduces the number of days from calving to re-conception in the following breeding season compared to the usually recommended period of supplementation of 90 d pre-partum. | Aline Gomes da Silva Mário Fonseca Paulino Edenio Detmann Henrique Jorge Fernandes Lincoln da Silva Amorim Román Enrique Maza Ortega Victor Valério de Carvalho Josilaine Aparecida da Costa Lima Felipe Henrique de Moura Mariana Benevides Monteiro Jéssika Almeida Bitencourt | 2018 | Journal of Animal Science and Biotechnology2018，9，1： | 2 |
| 2 | Effect of ausforming on microstructure and hardness of AISI H13 tool steel modified with niobium显示文摘 | Elias C N and Costa Viana C S Da | 1992 | Materials Science and Technology1992，9，： | 1 |
| 3 | Calcineurin differentially regulates fast myosin heavy chain genes in oxidative muscle frbre type conversion显示文摘 | da Costa N Edgar J Ooi PT | 2007 | Cell Tissue Res2007，329，3： | 1 |
| 4 | Restriction of dietary energy and protein induces molecular changes in young porcine skeletal muscles显示文摘 | DA COSTA N MCGILLIVRAY C BAI Q | 2004 | The Journal of Nutrition2004，134，9： | 1 |
| 5 | Relationships of myosin heavy chain fibre types to meat quality traits in traditional and modern pigs显示文摘 | Chang K C Costa N da Blackley R | 2003 | Meat Science2003，64，1： | 1 |
| 6 | Effects of breed diet and muscle on fat deposition and eating quality in pigs 显示文摘 | Wood D Nute G R Richardson R I Whittington F M Southwood O Plastow G Mansbridge R da Costa N Chang K C | 2004 | Meat Science2004，67，4： | 1 |
| 7 | Asymptomatic dogs are highly competent to transmit Leishmania ( Leishmania ) infantum chagasi to the natural vector显示文摘 | Márcia Dalastra Laurenti Claudio Nazaretian Rossi Vania Lúcia Ribeiro da Matta Thaise Yumie Tomokane Carlos Eduardo Pereira Corbett Nágila Francinete Costa Secundino Paulo Filemon Paulocci Pimenta Mary Marcondes | 2013 | Veterinary Parasitology2013，，： | 1 |
| 8 | Relationships of myosin heavy chain fibre types to meat quality traits in traditional and modern pigs显示文摘 | Chang K C da Costa N Blackley R | 2003 | Meat Sci2003，64，： | 1 |
| 9 | Effect of ausforming on microstructure and hardness of AISI H13 steel modified with niobium 显示文摘 | Elias C N Da Costa Viana C S | 1992 | Materials Science and Technology1992，8，： | 1 |
| 10 | Atropine for criticalcare intubation in a cohort of 264 children and reduced mortalityunrelated to effects on bradycardia显示文摘 | Jones P Peters MJ Pinto da Costa N | 2013 | PLoS One2013，8，57： | 1 |
| 11 | Role of Ser-652 and Lys-692 in the protease activity of infectious bursal disease virus VP4 and identification of its substrate cleavage sites 显示文摘 | Lejal N Da Costa B Huet J C etal | 2000 | The Journal of General Virology2000，81，4： | 1 |
| 12 | Cognitive Amplify-and-forward Relaying with Best Relay Selection in Non-identical Rayleigh Fading显示文摘 | Bao V N Q Duong T da Costa D | 2013 | IEEE Communications Letters2013，17，3： | 1 |
| 13 | Role of Ser-652 and Lys-692 in the protease activity of infectious bursal disease virus VP4 and identification of its substrate cleavage sites显示文摘 | Lejal N Da Costa B Huet J C | 2000 | J Gen Virol2000，81，4： | 1 |
| 14 | On the theory of inconsistent formal systems显示文摘 | DA COSTA N C A | 1974 | Notre Dame Journal of Formal Logic Volume 15 Number 41974，1974，： | 1 |
| 15 | Cognitive Amplify-and-forward Relaying with Best Relay Selection in Non-identical Rayleigh Fading显示文摘 | Bao V N Q Duong T Q Benevides da Costa D | 2013 | IEEE Communications Letters2013，17，3： | 1 |
| 16 | Calcineurin differentially regulates fast myosin heavy ehain genes in oxidative muscle fibre type conversion 显示文摘 | Da Costa N Edgar J Ooi PT | 2007 | Cell Tissue Res2007，329，3： | 1 |
| 17 | Stable NiO-CeO_(2) nanoparticles with improved carbon resistance for methane dry reforming显示文摘High surface area mixed oxide 8.7%NiO-CeO_(2) nanoparticles(122 m2/g;6-7 nm)were prepared using a reversed microemulsion method,and were tested for dry methane reforming(DRM).The catalytic activity of these nanoparticles remains stable under the severe conditions of DRM(700℃),and they show better carbon resistance than conventional NiO-CeO_(2) catalysts prepared without control of the size.The activity and selectivity of nanoparticles and reference catalyst are similar,but nanoparticles reduce the accumulation of carbon by 63%during the DRM tests,which is a key feature for this reaction.XPS and H_(2)-TPR suggest that the improved carbon resistance of the nanoparticles is due to the better interaction and cooperation between NiO and CeO_(2) mixed phases.In nanoparticles,the participation of cerium cations in the redox processes taking place during DRM stabilizes cationic species of nickel.On the contrary,the catalyst prepared without control of the size suffers segregation of Ni during DRM reaction,and segregated Ni explains the higher catalytic formation of carbon. | Andrea Cárdenas-Arenas Esther Bailón-García Dolores Lozano-Castelló Patrick Da Costa Agustín Bueno-López | 2022 | Journal of Rare Earths2022，40，1： | 1 |
| 18 | Analyzing and modeling real-world phenomena with complex networks:a survey of applications显示文摘 | COSTA L DA F OLIVEIRA O N JR TRAVIESO G | 2011 | Advances in Physics2011，60，3： | 1 |
| 19 | Developments in the Newton Raphson power flow formulation based on current injections 显示文摘 | da COSTA V M MARTINS N PEREIRA J L K | 1999 | IEEE Transactions on Power Systems1999，14，4： | 1 |
| 20 | Osmoadaptation mechanisms in prokaryotes: distribution of compatible solutes显示文摘 | EMPADJNHAS N da COSTA M S | 2008 | International Microbiology2008，11，3： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员